======================================
| [ 16.236227][ T36] #2: ffffffff9ccb4040 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event (net/core/link_watch.c:313)
| [ 16.236359][ T36] #3: ff11000008a39d68 (&dev_instance_lock_key#2){+.+.}-{4:4}, at: __linkwatch_run_queue (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/core/link_watch.c:239)
| [ 16.236510][ T36]
| [ 16.236510][ T36] stack backtrace:
[ 16.236607][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.236609][ T36] Workqueue: events_unbound linkwatch_event
[ 16.236612][ T36] Call Trace:
[ 16.236614][ T36]
[ 16.236615][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[ 16.236619][ T36] print_deadlock_bug.cold (kernel/locking/lockdep.c:3041)
[ 16.236623][ T36] validate_chain (kernel/locking/lockdep.c:3093 kernel/locking/lockdep.c:3895)
[ 16.236626][ T36] __lock_acquire (kernel/locking/lockdep.c:5237)
[ 16.236628][ T36] lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.236630][ T36] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.236631][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 16.236635][ T36] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 16.236636][ T36] __mutex_lock (kernel/locking/mutex.c:646 kernel/locking/mutex.c:820)
[ 16.236640][ T36] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.236641][ T36] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.236643][ T36] ? inet6_dump_fib (net/ipv6/ip6_fib.c:564 net/ipv6/ip6_fib.c:727)
[ 16.236646][ T36] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 16.236648][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.236649][ T36] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 16.236651][ T36] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.236652][ T36] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 16.236654][ T36] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 16.236656][ T36] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 16.236657][ T36] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 16.236659][ T36] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.236661][ T36] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 16.236663][ T36] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 16.236665][ T36] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.236666][ T36] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 16.236668][ T36] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 16.236669][ T36] port_cost (net/bridge/br_if.c:39)
[ 16.236672][ T36] ? br_multicast_flood (??:?)
[ 16.236674][ T36] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 16.236676][ T36] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 16.236678][ T36] br_port_carrier_check (net/bridge/br_if.c:80)
[ 16.236680][ T36] br_device_event (net/bridge/br.c:101)
[ 16.236682][ T36] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 16.236684][ T36] ? packet_sendmsg_spkt (af_packet.c:?)
[ 16.236687][ T36] notifier_call_chain (kernel/notifier.c:85)
[ 16.236690][ T36] netif_state_change (net/core/dev.c:1603)
[ 16.236693][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 16.236695][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 16.236696][ T36] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 16.236698][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 16.236700][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 16.236702][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 16.236703][ T36] process_one_work (kernel/workqueue.c:3314)
[ 16.236706][ T36] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 16.236708][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 16.236710][ T36] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 16.236713][ T36] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 16.236715][ T36] kthread (kernel/kthread.c:436)
[ 16.236716][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 16.236719][ T36] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.236721][ T36] ret_from_fork (arch/x86/kernel/process.c:158)
[ 16.236724][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 16.236726][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 16.236729][ T36] ? kthread_affine_node (kernel/kthread.c:378)
[ 16.236731][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 16.236734][ T36]
[ 247.229026][ T44] INFO: task kworker/u17:0:36 blocked for more than 122 seconds.
[ 247.229240][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.229323][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.229458][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 247.229648][ T44] Workqueue: events_unbound linkwatch_event
[ 247.229772][ T44] Call Trace:
[ 247.229836][ T44]
[ 247.229882][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.229974][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.230070][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.230155][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 247.230241][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.230328][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.230415][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.230478][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.230566][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.230657][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.230765][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.230845][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.230926][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.231007][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 247.231095][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 247.231182][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 247.231284][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 247.231364][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.231446][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 247.231525][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 247.231604][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.231704][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 247.231805][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 247.231884][ T44] port_cost (net/bridge/br_if.c:39)
[ 247.231946][ T44] ? br_multicast_flood (??:?)
[ 247.232036][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 247.232115][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 247.232201][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 247.232285][ T44] br_device_event (net/bridge/br.c:101)
[ 247.232371][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 247.232449][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 247.232528][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 247.232607][ T44] netif_state_change (net/core/dev.c:1603)
[ 247.232691][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.232793][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 247.232874][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 247.232953][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.233039][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 247.233115][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 247.233198][ T44] process_one_work (kernel/workqueue.c:3314)
[ 247.233276][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 247.233351][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 247.233427][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 247.233505][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 247.233582][ T44] kthread (kernel/kthread.c:436)
[ 247.233640][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.233741][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.233817][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 247.233895][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 247.233991][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 247.234071][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 247.234149][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 247.234228][ T44]
| [ 247.234287][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 247.234432][ T44] INFO: task bridge:330 blocked for more than 122 seconds.
[ 247.234534][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 247.234604][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.234727][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 247.234892][ T44] Call Trace:
[ 247.234948][ T44]
[ 247.234985][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 247.235064][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 247.235139][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235216][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 247.235290][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.235363][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.235437][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 247.235492][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 247.235565][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 247.235639][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.235719][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.235792][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 247.235866][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.235958][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.236036][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.236108][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 247.236182][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.236255][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 247.236328][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.236416][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 247.236487][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.236560][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.236637][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 247.236711][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 247.236782][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 247.236874][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 247.236945][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 247.237018][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 247.237090][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 247.237162][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 247.237218][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 247.237292][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 247.237365][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 247.237438][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 247.237513][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.237583][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 247.237654][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.237742][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 247.237813][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.237882][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 247.237954][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 247.238044][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 247.238115][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 247.238185][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 247.238253][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.238320][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 247.238389][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 247.238461][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.238529][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.238598][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 247.238667][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 247.238739][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 247.238809][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 247.238878][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 247.238948][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 247.239021][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 247.239090][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 247.239160][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 247.239231][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 247.239298][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 247.239366][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 247.239434][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 247.239518][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 247.239604][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 247.239670][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 247.239739][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 247.239809][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 247.239877][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 247.239944][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 247.240031][ T44] RIP: 0033:0x7f75f660b08e
[ 247.240106][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 247.240217][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e
[ 247.240320][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005
[ 247.240422][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000
[ 247.240522][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68
[ 247.240630][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78
| [ 247.240738][ T44]
| [ 247.240789][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36.
| [ 247.240901][ T44] INFO: lockdep is turned off.
[ 370.109020][ T44] INFO: task kworker/u16:0:12 blocked for more than 122 seconds.
[ 370.109209][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.109289][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.109430][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.109613][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 370.109720][ T44] Call Trace:
[ 370.109781][ T44]
[ 370.109823][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.109908][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.109988][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.110082][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.110174][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.110254][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.110334][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.110397][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.110477][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.110559][ T44] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[ 370.110640][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.110722][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.110802][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.110883][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 370.110981][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 370.111075][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.111168][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.111248][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.111329][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 370.111412][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.111491][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.111569][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.111646][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 370.111724][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 370.111804][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.111883][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.111962][ T44] kthread (kernel/kthread.c:436)
[ 370.112027][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.112125][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.112210][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.112294][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.112393][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.112471][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.112549][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.112633][ T44]
| [ 370.112698][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 370.112842][ T44] INFO: task kworker/u17:0:36 blocked for more than 245 seconds.
[ 370.112949][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.113025][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.113149][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 370.113321][ T44] Workqueue: events_unbound linkwatch_event
[ 370.113420][ T44] Call Trace:
[ 370.113475][ T44]
[ 370.113512][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.113587][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.113663][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.113738][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.113812][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.113885][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.113960][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.114019][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.114094][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.114175][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.114269][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.114345][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.114421][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.114493][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 370.114566][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 370.114640][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 370.114731][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 370.114805][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.114879][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 370.114952][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 370.115039][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.115129][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 370.115221][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 370.115296][ T44] port_cost (net/bridge/br_if.c:39)
[ 370.115352][ T44] ? br_multicast_flood (??:?)
[ 370.115440][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 370.115513][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 370.115590][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 370.115662][ T44] br_device_event (net/bridge/br.c:101)
[ 370.115734][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 370.115809][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 370.115882][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 370.115958][ T44] netif_state_change (net/core/dev.c:1603)
[ 370.116037][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.116126][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 370.116197][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 370.116269][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.116345][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 370.116420][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 370.116489][ T44] process_one_work (kernel/workqueue.c:3314)
[ 370.116561][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 370.116632][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 370.116703][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 370.116774][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 370.116847][ T44] kthread (kernel/kthread.c:436)
[ 370.116900][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.116993][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.117069][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 370.117141][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 370.117229][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 370.117299][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 370.117373][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 370.117447][ T44]
| [ 370.117499][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 370.117638][ T44] INFO: task bridge:330 blocked for more than 245 seconds.
[ 370.117736][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 370.117801][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 370.117914][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 370.118069][ T44] Call Trace:
[ 370.118121][ T44]
[ 370.118156][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 370.118224][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 370.118292][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.118363][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 370.118435][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.118502][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.118570][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 370.118621][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 370.118689][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 370.118758][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.118824][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.118893][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 370.118961][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.119053][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.119121][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.119188][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 370.119257][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.119326][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 370.119401][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.119483][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 370.119553][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.119620][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.119690][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 370.119758][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 370.119824][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 370.119909][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 370.119977][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 370.120052][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 370.120119][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 370.120187][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 370.120240][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 370.120308][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 370.120376][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 370.120449][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 370.120516][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.120582][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 370.120649][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.120732][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 370.120798][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.120869][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 370.120939][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 370.121026][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 370.121092][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 370.121164][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 370.121231][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.121296][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 370.121363][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 370.121435][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.121504][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.121577][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 370.121643][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 370.121711][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 370.121778][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 370.121843][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 370.121909][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 370.121976][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 370.122048][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 370.122115][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 370.122184][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 370.122252][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 370.122318][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 370.122384][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 370.122470][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 370.122560][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 370.122625][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 370.122692][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 370.122759][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 370.122824][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 370.122890][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 370.122970][ T44] RIP: 0033:0x7f75f660b08e
[ 370.123049][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 370.123153][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e
[ 370.123253][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005
[ 370.123357][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000
[ 370.123464][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68
[ 370.123567][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78
| [ 370.123669][ T44]
| [ 370.123719][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36.
| [ 370.123835][ T44] INFO: lockdep is turned off.
[ 492.989019][ T44] INFO: task kworker/u16:0:12 blocked for more than 245 seconds.
[ 492.989206][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.989288][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.989421][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.989600][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 492.989703][ T44] Call Trace:
[ 492.989767][ T44]
[ 492.989810][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.989895][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.989976][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990066][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.990147][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.990233][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990314][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.990385][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.990465][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.990545][ T44] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[ 492.990626][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.990706][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.990787][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.990866][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 492.990966][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 492.991056][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.991140][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.991228][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.991308][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 492.991387][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.991469][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.991550][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.991632][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 492.991710][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 492.991789][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.991868][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.991945][ T44] kthread (kernel/kthread.c:436)
[ 492.992004][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.992111][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.992195][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.992274][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.992371][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.992448][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.992528][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.992613][ T44]
| [ 492.992676][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 492.992825][ T44] INFO: task kworker/u17:0:36 blocked for more than 368 seconds.
[ 492.992933][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.993006][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.993135][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 492.993309][ T44] Workqueue: events_unbound linkwatch_event
[ 492.993405][ T44] Call Trace:
[ 492.993461][ T44]
[ 492.993501][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.993578][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.993658][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.993732][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.993808][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.993885][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.993961][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.994021][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.994096][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.994173][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.994267][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.994343][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.994425][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.994500][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 492.994576][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 492.994655][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 492.994751][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 492.994824][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.994898][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 492.994973][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 492.995054][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.995146][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 492.995242][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 492.995318][ T44] port_cost (net/bridge/br_if.c:39)
[ 492.995376][ T44] ? br_multicast_flood (??:?)
[ 492.995450][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 492.995526][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 492.995601][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 492.995673][ T44] br_device_event (net/bridge/br.c:101)
[ 492.995745][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 492.995816][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 492.995890][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 492.995964][ T44] netif_state_change (net/core/dev.c:1603)
[ 492.996049][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 492.996145][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 492.996220][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 492.996293][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 492.996366][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 492.996438][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 492.996510][ T44] process_one_work (kernel/workqueue.c:3314)
[ 492.996586][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 492.996658][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 492.996730][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 492.996803][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 492.996873][ T44] kthread (kernel/kthread.c:436)
[ 492.996927][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 492.997017][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.997090][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 492.997164][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 492.997250][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 492.997325][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 492.997396][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 492.997466][ T44]
| [ 492.997524][ T44] INFO: task kworker/u17:0:36 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 492.997660][ T44] INFO: task bridge:330 blocked for more than 368 seconds.
[ 492.997757][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 492.997822][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 492.997933][ T44] task:bridge state:D stack:25840 pid:330 tgid:330 ppid:329 task_flags:0x400100 flags:0x00080000
[ 492.998092][ T44] Call Trace:
[ 492.998143][ T44]
[ 492.998184][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 492.998254][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 492.998329][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.998399][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 492.998468][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.998538][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.998607][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 492.998661][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 492.998734][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 492.998806][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.998874][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 492.998941][ T44] ? nla_get_range_signed (lib/nlattr.c:270)
[ 492.999007][ T44] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 492.999096][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.999170][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 492.999237][ T44] ? __nla_validate_parse (lib/nlattr.c:635)
[ 492.999305][ T44] ? rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.999372][ T44] rtnl_dump_ifinfo (net/core/rtnetlink.c:80 net/core/rtnetlink.c:2554)
[ 492.999439][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 492.999522][ T44] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[ 492.999591][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 492.999660][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 492.999732][ T44] ? trace_kmalloc (./include/trace/events/kmem.h:57 (discriminator 22))
[ 492.999799][ T44] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[ 492.999866][ T44] ? __kmalloc_node_track_caller_noprof (mm/slub.c:5297 mm/slub.c:5408)
[ 492.999950][ T44] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[ 493.000018][ T44] ? __alloc_skb (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:67 net/core/skbuff.c:408 net/core/skbuff.c:720)
[ 493.000085][ T44] ? __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:695 (discriminator 2))
[ 493.000156][ T44] ? napi_skb_cache_get (./include/linux/local_lock_internal.h:61)
[ 493.000223][ T44] rtnl_dumpit (net/core/rtnetlink.c:6931)
[ 493.000274][ T44] netlink_dump (net/netlink/af_netlink.c:2331)
[ 493.000347][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 493.000419][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 493.000486][ T44] ? netlink_lookup (./include/linux/refcount.h:291)
[ 493.000554][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.000626][ T44] __netlink_dump_start (net/netlink/af_netlink.c:2446)
[ 493.000701][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 493.000781][ T44] rtnetlink_rcv_msg (./include/linux/netlink.h:341 net/core/rtnetlink.c:6960 net/core/rtnetlink.c:7027)
[ 493.000848][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 493.000914][ T44] ? rtnl_unlock (net/core/rtnetlink.c:157)
[ 493.000980][ T44] ? rtnl_fill_ifinfo.isra.0 (net/core/rtnetlink.c:2212)
[ 493.001064][ T44] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[ 493.001131][ T44] netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[ 493.001206][ T44] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[ 493.001272][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.001338][ T44] ? netlink_ack (./include/linux/skbuff.h:2720)
[ 493.001403][ T44] ? __netlink_lookup (./include/linux/rcupdate.h:839 ./include/linux/rhashtable.h:708 net/netlink/af_netlink.c:499)
[ 493.001472][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.001538][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.001603][ T44] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[ 493.001669][ T44] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 493.001736][ T44] netlink_sendmsg (net/netlink/af_netlink.c:1900)
[ 493.001803][ T44] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7))
[ 493.001869][ T44] ? rcu_read_unlock (./include/linux/rcupdate.h:867 (discriminator 6))
[ 493.001935][ T44] ? do_anonymous_page (./include/linux/pgtable.h:117 mm/memory.c:5433)
[ 493.002001][ T44] __sys_sendto (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2265 (discriminator 4))
[ 493.002072][ T44] ? __ia32_sys_getpeername (net/socket.c:2219)
[ 493.002138][ T44] ? __pmd_alloc (./include/linux/mm.h:1682)
[ 493.002208][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 493.002277][ T44] ? lock_release (./include/trace/events/lock.h:69 (discriminator 22) kernel/locking/lockdep.c:5879 (discriminator 22))
[ 493.002343][ T44] __x64_sys_sendto (net/socket.c:2272 net/socket.c:2268 net/socket.c:2268)
[ 493.002410][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 493.002492][ T44] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22))
[ 493.002574][ T44] ? irqentry_exit (./include/linux/irq-entry-common.h:272 ./include/linux/irq-entry-common.h:317 kernel/entry/common.c:162)
[ 493.002639][ T44] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[ 493.002705][ T44] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[ 493.002773][ T44] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1))
[ 493.002843][ T44] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3))
[ 493.002909][ T44] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[ 493.002991][ T44] RIP: 0033:0x7f75f660b08e
[ 493.003068][ T44] RSP: 002b:00007ffec358dd10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[ 493.003172][ T44] RAX: ffffffffffffffda RBX: 00007ffec358df78 RCX: 00007f75f660b08e
[ 493.003272][ T44] RDX: 0000000000000028 RSI: 00007ffec358dd70 RDI: 0000000000000005
[ 493.003375][ T44] RBP: 00007ffec358dd20 R08: 0000000000000000 R09: 0000000000000000
[ 493.003480][ T44] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffec358df68
[ 493.003579][ T44] R13: 0000000000000009 R14: 00007f75f68af000 R15: 0000000000423c78
| [ 493.003686][ T44]
| [ 493.003737][ T44] INFO: task bridge:330 is blocked on a mutex likely owned by task kworker/u17:0:36.
| [ 493.003848][ T44] INFO: lockdep is turned off.
[ 615.869019][ T44] INFO: task kworker/u16:0:12 blocked for more than 368 seconds.
[ 615.869201][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 615.869282][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.869416][ T44] task:kworker/u16:0 state:D stack:26864 pid:12 tgid:12 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 615.869597][ T44] Workqueue: ipv6_addrconf addrconf_verify_work
[ 615.869699][ T44] Call Trace:
[ 615.869760][ T44]
[ 615.869804][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 615.869892][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.869980][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.870075][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 615.870157][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 615.870243][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.870325][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 615.870386][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 615.870473][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 615.870555][ T44] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[ 615.870639][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.870721][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.870801][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 615.870880][ T44] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1))
[ 615.870981][ T44] ? debug_object_deactivate (lib/debugobjects.c:915 (discriminator 3))
[ 615.871068][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.871149][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.871230][ T44] ? addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.871314][ T44] addrconf_verify_work (./include/linux/rtnetlink.h:130 net/ipv6/addrconf.c:4761)
[ 615.871395][ T44] process_one_work (kernel/workqueue.c:3314)
[ 615.871475][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 615.871555][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.871635][ T44] ? find_held_lock (kernel/locking/lockdep.c:5350)
[ 615.871715][ T44] ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[ 615.871794][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 615.871880][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 615.871960][ T44] kthread (kernel/kthread.c:436)
[ 615.872022][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 615.872118][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 615.872195][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 615.872273][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 615.872370][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 615.872450][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 615.872528][ T44] ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [ 615.872608][ T44]
| [ 615.872669][ T44] INFO: task kworker/u16:0:12 is blocked on a mutex likely owned by task kworker/u17:0:36.
[ 615.872815][ T44] INFO: task kworker/u17:0:36 blocked for more than 491 seconds.
[ 615.872922][ T44] Not tainted 7.1.0-rc5-virtme #1
[ 615.872995][ T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 615.873121][ T44] task:kworker/u17:0 state:D stack:26376 pid:36 tgid:36 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 615.873285][ T44] Workqueue: events_unbound linkwatch_event
[ 615.873378][ T44] Call Trace:
[ 615.873434][ T44]
[ 615.873474][ T44] __schedule (kernel/sched/core.c:5388 kernel/sched/core.c:7189)
[ 615.873552][ T44] ? io_schedule_timeout (kernel/sched/core.c:8079 (discriminator 1))
[ 615.873632][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.873711][ T44] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 615.873786][ T44] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22))
[ 615.873859][ T44] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3))
[ 615.873936][ T44] schedule (kernel/sched/core.c:7268 kernel/sched/core.c:7283)
[ 615.873993][ T44] schedule_preempt_disabled (kernel/sched/core.c:7340)
[ 615.874086][ T44] __mutex_lock (kernel/locking/mutex.c:726 kernel/locking/mutex.c:820)
[ 615.874160][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 615.874257][ T44] ? ww_mutex_lock (kernel/locking/mutex.c:933)
[ 615.874330][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 615.874404][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 615.874477][ T44] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180)
[ 615.874551][ T44] ? rt6_multipath_rebalance (./include/net/addrconf.h:348 (discriminator 4))
[ 615.874627][ T44] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4411 (discriminator 2))
[ 615.874719][ T44] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[ 615.874792][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 615.874865][ T44] ? __local_bh_enable_ip (kernel/softirq.c:455)
[ 615.874940][ T44] ? fib6_walk (net/ipv6/ip6_fib.c:89 net/ipv6/ip6_fib.c:2229)
[ 615.875018][ T44] ? __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 615.875108][ T44] __ethtool_get_link_ksettings (./include/linux/netdevice.h:2835 ./include/net/netdev_lock.h:42 ./include/net/netdev_lock.h:39 net/ethtool/ioctl.c:462)
[ 615.875201][ T44] ? fib6_walk (./include/linux/list.h:262 net/ipv6/ip6_fib.c:88 net/ipv6/ip6_fib.c:2229)
[ 615.875274][ T44] port_cost (net/bridge/br_if.c:39)
[ 615.875328][ T44] ? br_multicast_flood (??:?)
[ 615.875401][ T44] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535)
[ 615.875474][ T44] ? packet_notifier (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/packet/af_packet.c:4234 (discriminator 2))
[ 615.875549][ T44] br_port_carrier_check (net/bridge/br_if.c:80)
[ 615.875622][ T44] br_device_event (net/bridge/br.c:101)
[ 615.875697][ T44] ? fib6_ifdown (net/ipv6/route.c:4962)
[ 615.875769][ T44] ? packet_sendmsg_spkt (af_packet.c:?)
[ 615.875841][ T44] notifier_call_chain (kernel/notifier.c:85)
[ 615.875916][ T44] netif_state_change (net/core/dev.c:1603)
[ 615.875988][ T44] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:419 (discriminator 7))
[ 615.876083][ T44] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[ 615.876154][ T44] __linkwatch_run_queue (net/core/link_watch.c:240)
[ 615.876227][ T44] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[ 615.876298][ T44] linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[ 615.876369][ T44] ? __linkwatch_run_queue (net/core/link_watch.c:213)
[ 615.876440][ T44] process_one_work (kernel/workqueue.c:3314)
[ 615.876512][ T44] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4))
[ 615.876583][ T44] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1))
[ 615.876656][ T44] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478)
[ 615.876732][ T44] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3))
[ 615.876801][ T44] kthread (kernel/kthread.c:436)
[ 615.876854][ T44] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[ 615.876950][ T44] ? kthread_affine_node (kernel/kthread.c:378)
[ 615.877022][ T44] ret_from_fork (arch/x86/kernel/process.c:158)
[ 615.877093][ T44] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37)
[ 615.877180][ T44] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[ 615.877257][ T44] ? kthread_affine_node (kernel/kthread.c:378)
Finger prints:
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:__ethtool_get_link_ksettings
validate_chain:__lock_acquire:__mutex_lock:__ethtool_get_link_ksettings:port_cost
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:addrconf_verify_work
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:rtnl_dump_ifinfo